She was crowned at Westminster Abbey on 2nd June 1953, nearly eighteen months after she succeeded her father, King George VI who died on 6th February 1952.
As of today she has reigned for .
In 2012 Queen Elizabeth II celebrated the Diamond 60th Jubilee of her reign, and 2nd June 2013 was the 60th anniversary of her coronation.

On 10th September 2015 Queen Elizabeth II became the longest reigning monarch in over 1,200 years or British History when
the length of her reign surpassed her great-great-grandmother Queen Victoria
who reigned for 63 years and 7 months from 20th June 1837 to 22nd January 1901. See British Kings & Queens by Length of Reign.

On 21st December 2007 she became the oldest reigning British monarch having lived longer than
Queen Victoria who died 22nd January 1901 aged 81 years, 7 months and 29 days. On 20th November 2012 Queen Elizabeth II celebrated her 65th wedding anniversary. On 21st April 2016 she became 90 years old.

The Queen's husband Prince Philip, Duke of Edinburgh, is
old, and celebrated his 95th birthday on 10th June 2016. He is the longest ever serving Royal Consort and oldest serving spouse of a reigning British monarch.

On 29th April 2011 the Queen's grandson Prince
William, who is 2nd in line to the throne, married
Catherine (Kate) Middleton
in Westminster Abbey. They are now the Duke and Duchess
of Cambridge, and in Scotland the Earl and Countess of
Strathearn. On 22 July 2013 their first child Prince
George was born. He is now 3rd in
Line of Succession to the thone after his father,
Prince William, and his grandfather Prince Charles. Their
second child Princess Charlotte was born on 2nd May 2015
and is 4th in line.

Elizabeth II is Queen of the United Kingdom of Great Britain
and Northern Ireland, and Head of the Commonwealth of Nations.
Great Britain was formed 308 years ago by the Act of Union
between England and Scotland on 1st April 1707. More
about Great Britain

As well as the United Kingdom, she is Queen of Canada,
Australia, New Zealand, Jamaica, Barbados, the Bahamas,
Grenada, Papua New Guinea, the Solomon Islands, Tuvalu,
Saint Lucia, Saint Vincent and the Grenadines, Antigua
and Barbuda, Belize, and Saint Kitts and Nevis, where
she is represented by Governors-General. The sixteen countries
of which she is Queen are known as Commonwealth Realms,
and their combined population is 140 million.

She is Head of the Commonwealth of Nations comprising
53 member states in North America, South America, Europe,
Africa, Asia and Oceania. The aims of the Commonwealth
include the promotion of democracy, human rights, good
governance, the rule of law, individual liberty, egalitarianism,
free trade, multilateralism, and world peace. The 2.3
billion people in the member states account for almost
a third of the current world population.

Her reign of over 64 years has seen 13
Prime Ministers of the United Kingdom, and numerous
Prime Ministers in the Commonwealth Realms of which she
is (or was) also Head of State; between them she has had
a total of 140 Prime Ministers including 11 Canadian and
13 Australian Prime Ministers during her reign. There
have been 12 US Presidents
during her reign.